John scroll



LSCHOLL.

Gas-Burner Attachment,

No. 80,568. Patented Aug. 4, 1868.`

/Wnassem v Inn/nrw" @eine gime getest @man JOHN SOHOLL, Or SOHO, .issieNOR T O SAMUEL 'S'.BATESON, OF MAYFAIR ENGLAND.

f Lamparas): No. 80,568, dated August 4, 1868.

IMPROVEMENT IN GAS-BURNER ATTACHMENTS.

TO ALL 'IO WI-IOM -IT MAY CONCEIIN:

Beit known that I, JOHN SCROLL, of Berwick street, Soho, in the county of Middlesex, England, engineer, v

have invented certain Improvements in Gas-Burners, and in Apparatus to be Used in Connection therewith; and I do hereby declare the following to b e a full, clcar,rand exact dcscriptionof th'e same.

This invention has for its object the protecting from injury the platinum and other like appliances which are sometimes fitted on to or over gas-'burners, with a view to the improving the light obtained therefrom.

It has been found in practice that these gas-light improvcrs, which in some instan-ees consist of a very thin and fragile strip of platinum, or other metal, placed across and standing up above the top of the burner, are liableto bc broken or deranged accidentally, when removing the dust from' the burner or adjacent parts.

In order to ohviate this objection, I propose'to combine with each gas-lightimprover, a metal or other guard, which will effectually protect it from injury, without, at the same time, casting any appreciable shadow. This guard may obviously be constructed and applied in various ways, with a view not only to protect the platinum light-improver, but also to maintain it securely in its proper adjusted position on the burner,

Figure Ioftbe drawings is an elevation, and

Figure 2 a plan, showing, as an example, one mode of applying a guard to a fish-tail burner.

Figures 3, 4, and 5, are detached views ofthe guard-light perfecter and burner respectively.

ais the burner, having a platinum light-perfecter, I), adapted thereto, protected by the guard c, the whole Of the parts being shown adjusted ready for use in igs. 1 and 2.

The guard or protector c may consist of a piece of metal, bent into the forrn of a collar, and having, say,

four protecting-fingers, d d, formed thereon, which fingers are slightly bent or curved inwards and outwards,

so as to gripe the top edge ofthe burner.

VIn the collar of the light-improver there are eut a number of slots, e e, corresponding to the fingers of the guard, so` that when the guard is adjusted, the fingers d will spring into these slots, and bear against the burner itself. i

' In order to 'prevent the light-imp'rovex and guard from turning round on the burner, I grind, or otherwise produce, a number of flat' faces or faeets,f, on the circumference of the burner, at the top thereof, against which flat surfaces the fingers dobtain a bearing, and therebyprevent any tendency of the parts to move round the burner. It will be seen that the fingers 'cl project siightly above the piece of platinum 11,-and thereby protect it from injury. Y

.in lieu of holding the parts in position by cutting facets round the burner, the same effect may be obtained by having one er' more stems or projections formed on the lower part of the guard, and fittinginto slots made either in a`scparate shoulder, or into a shoulder made in one piece with the burners. This is clearly shownv in vFigures 6 and 7, where the ordinziiy burner a is 'screwedv into a metal socket, which is itself screwed into the pipe, as shown in figs. Grand 7.' lIhis socket g is formed with a shoulder or collar, g', in the opposite sides of which are madertwo vertical slots, grooves, or-perforations h layer the shoulder containing the slots h may be made in one piece with the burner itself, as shown in Figure 8.

The guard'or protector c to be used in this modification has two'stems or strips z'z', shown clearly in Figure 9, projecting from its lower edge, and is so situated as to correspond, when properly adjusted, with the slotsjz, into which they fit, as shown in the drawings. The guard is thus prevented from turning, and as its fingers d engage-with the slots'e e, in the collar of the light-improver, it follows that the'latter willalso be maintained in its proper place. Y v

In the case of street and other lamps, which are sometimes lighted and extinguished by introducing an apparatus'for the purpose through the bottom of the lamp, there would bo some risk of pushingoif the guard, and with it the perfecter, but this may be obviated lby simply making the slots or: holes h lz, inthe collar g, to

` wsse 2v..

incline inwards towards' the bottom, and nipping or pnehing the lower ends of the stems z z' after theyhaive been inserted into the said slots or holes. By this means the guard will be effeetually locked tothe burner.

i Claims.

1. The combination, with a. platinum or other equivalent gas-light improver or perfecter, oie guard or protector, for `thepurposo hereinbefore set forth. v

2. The peculiar modes of combining 'a gas-light improver' or perfeoter with a. guard or protector, whereby the former ismaintained, through the agency of the latter, in its proper adjusted position, substantially as hereinbeforedeserib'ed; and illustrated by'the drawings. y l

In testimony whereof, I have signed my name to this specification in the presence of two subscribing witnesses. JOHN SCHOLL Witnesses:

vJN0. NEALE,

HENRY STEVENS. 

